#nav {
  width: 451px;
  height: 25px;
  position: relative;
  background: url(p/navi.gif);
  margin: 0;    
  padding: 0;
}
#nav li {
  float: left;
}
#nav li a {
  position: absolute;
  top: 0;
  margin: 0;
  padding: 0;
  display: block;
  height: 25px;
  background: url(p/navi.gif) no-repeat;
  text-indent: -9999px;
  overflow: hidden;
  font-size: 1%;
}
li#nav_etu a {
  left: 0;
  width: 68px;
  background-position: 0 0;
}
li#nav_uut a {
  left: 68px;
  width: 68px;
  background-position: -68px 0;
}
li#nav_edu a {
  left: 136px;
  width: 68px;
  background-position: -136px 0;
}
li#nav_saa a {
  left: 204px;
  width: 68px;
  background-position: -204px 0;
}
li#nav_kum a {
  left: 272px;
  width: 89px;
  background-position: -272px 0;
}
li#nav_til  a {
  left: 361px;
  width: 89px;
  background-position: -361px 0;
}
li#nav_etu a:hover {
  background-position: 0 -25px;
}
li#nav_uut a:hover {
  background-position: -68px -25px;
}
li#nav_edu a:hover {
  background-position: -136px -25px;
}
li#nav_saa a:hover {
  background-position: -204px -25px;
}
li#nav_kum a:hover {
  background-position: -272px -25px;
}
li#nav_til a:hover {
  background-position: -361px -25px;
}
li#nav_etu  a.sel {
  background-position: 0 -50px;
}
li#nav_uut a.sel {
  background-position: -68px -50px;
}
li#nav_edu a.sel {
  background-position: -136px -50px;
}
li#nav_saa a.sel {
  background-position: -204px -50px;
}
li#nav_kum a.sel {
  background-position: -272px -50px;
}
li#nav_til a.sel {
  background-position: -361px -50px;
}